Packing for incandescent-lamp bulbs and the like.



F. C. MARCH.

PACKING FOR INCANDESCENT LAMP BULBS AND THE LIKE.

APPLICATION FILED APR. I. 1913.

1,212,793. Patented Jan. 16,1917.

F'z'g.3.

Fig.4.

WITNESSES. FREZ'N BY i HIS ATTORNEY.

ram) c. Manon, or ARREN, OHIO, ASSIGNOR 'ro GENERAL ELEcrnic commi s, A.

a coeroaarrou or new YORK.

. PACKING run INGANDESQENT-LAMP rungs AND ,TH LIKE.

To all whom it mag concern} Be it known that have invented certain new 1provements 1n Specification of Letters Patent,

, I, FRED C. MARCH, a citizen of the United States, Warren, county ofTrumbull,

residing at State and useful Im- Packing for Incandescent Lamp Bulbs andthe like, of which the l following is a specification.

y candescent lamps and like, and besides being efiicient generalprotection a and against invention relates to the packing of inlampbulbs and the capable of affording gain'st breakage shock which in thecase of lamps might result in injury to the filaments, it is peculiarlyadapted to. the protection of the bowls and the tips of such articles.

Various additional advantages obtainable in connection with the'invcomeapparent from the des ention will be cription hereinafter of certainparticular forms of packing which embody it,

tages including great simpli ness. However, while my invention extendsto the particular embodimen herein show and describe and to their s'pe-'which are ofimcific features and details,

these additional advancity and cheap ts which I shall portance onaccount of-various specific a vantages, yet it is not confined thereto,but can be otherwise carried out and applled.

In the accompanying drawings,

{view in which my invention is embodied.

is a somewhat conventional packing Fig. 2 1s a similar view of a in thepacking shown Figure 1 of a lamp part comprised in Fig. 1. Fig. 3 is apartly sectional viewcndicating, in a somewhat conventional manner,

incandescent lamps 1n the in Fig. 1 may be arranged of a type commonlyhow a number of packing shown in a container employed for incandescentlamps, a part of one of the packings being shown in longitudinal sectionin order that the lamp and its relation to the packing may be seen.

Fig. 4 is a somewhat 'con-= ventional view showing a lamp with a pack:

from that shown lar view of still As will at once my invention resemblesmo previously in use to ploy a wrapper or jacket of part of somewhatdifferent character in Fig. 1. Fig. 5 is a simianother form of packing.

be seen from Figs. 1 and- 3,

des of packing the extent that. I emany convenientand "suitable materialsurrounding the large portion of the lamp bulb and extending of Ohio, 7

. to previous box may receive,

in danger of being initial placing of Y j acent wall of employed in ageneral-description and of the ordinary corrugated straw paper type areused to packv incandescent lamps, for example, according practice,thelamps are merely inserted in the. wrappers or jackets (the jackets beingthereby expanded where the largest portions of the bulbs come so thatPatented Jan. 16, 191%.

. Application filed April 7, 1913. Serial No. 759,400. 7 i

When tubular. wrappers or jackets of this their corrugations aresomewhat flattened, 1

while the ends of the jacket assume the conical-form illustrated in Fig.3), and some four or five of the lamps thus jacketed are packed side'byside in a card-board carton such as is shown 7 being base upward and therest tip upward. \Vhile the resulting package is reasonably good, itnevertheless has the disadvantage that in consequence in Fig. 3,alternate lamps of careless packing or of shifting of a lamp in itsjacket the tip 1 of a lamp (or the bowl of a tipless. lamp) notinfrequently lies against the top or the bottom of the box, where it isexposed to almost, the full impact of any blow that the or that the tipeven penetrates the cardboard of the box so as to be broken .off by jarorshock endw'se or sidewise of the box or by one box sliding overanother, etc.

According to my invention,

the lamp in an improper position in the packing or of its taking up animproper posit-ion is entirely'obviated by making the packing resistmovement of the lamp toward the end of the which the tip end or bowl ofthe bulb lies,

either yieldin'gly or absolutely. This may be effected by contraction orreduction in any way of the portion of the jacket through which the lampmust move in this. direction, particularly by providlng in this.

portion of the jacket some sort of obstacle which reduces the efi'ectivearea available all danger of Q packing at j 'for such movement, or byspacing means associated with the jacket and interposed tween the bowlof the lamp bulb and the adwhich forms of resistance may be of a more orless yielding character and can perfectly wellbe incorporated or jacketor wrapper which is in the case of a jacket packed,-.-any of itselfyielding,-or,

which is yielding throughout its length, for

example, by accentuation or reinforcement the container inwhich .it is emove toward the end at which the tip lies.

In the packing shown, the jacket or wrapper 1 as a whole comprises anordinary--corrugated tubular or-cylindrical sleeve part 2 such as wouldprior to my invention be used forthe lamp 3 to be packed, and .all the.modes of action mentioned above are present. For a straight sided watt110. volt v Mazda incandescent lamp whose maximum dlameter is about 2%inches and whose over all lengthis about 51 inches, asvat presentcommerciallymanufactured, for instance, a

jacket of this sort may be about 5% inches panded of about 2%- inches,and may be corrugated to such an extent that if the corrugations werecompletely flattened its diameter would be, say, from to greater thanthis. As shown, the desired action of the jacket 1 as a whole is securedby means of a paper band or sleeve part 4 arranged at the end 5 of thejacket part2 where the bowl 6 of the lamp bulb lies, this band being putin place either before or after v 3 is inserted in the jacket 2, andbeing prefthe' lamp erabIy placed inside the j acket2 rather than Ijacket 2.

outside it. It is not necessary to paste or otherwise secure the band 4in place: it may simply be left loosely telescoped in the The band part4 shown in Figs. 1, 2-a-nd 3,

.it'will be seen, is corrugated like the jacket (part 2 with which it isused. This band 4,

furthermore,isprior to insertion thereinof about the same diameter asthe jacket 2 and is cori ugated to about the same extent, and

'. its width is slightly greater than the distance from the plane atabout .7 where the lamp 3 is of greatest diameter to its tip 8.

Such a band may consist of a portion of a jacket like that with which itisused, and

1 for a 25 watt lamp such asabove mentioned 45.

it may then be about 14 inches wide. Even though this band or sleevepart '4 be so in serted in the wrapper or jacket part 2 that thecorrugationsof the acket part and those of the band part exactlycoincide, as shown in Fig. 1, so that it becomes in eifecta liner, itspresence will keep the tip 8 or the bowl 6 of the lamp 3 at a-safedistance from any surface against which-the corresponding end 5 of thejacket part 2 lies. action is such that the lamp 3' is, in effect, re-

siliently supported .or suspended in the jacket 1,-so that if, forexample, one places the end 5 of. the jacket 1 on a table and presses onthe lampbase 9 so as to push the lamp forcibly down in the jacket 1until the tip 8 comes. in contact with the table, the lamp 3 will jumpback away from the table as soon'as it is released; What with this andthe corrugations of the jacket 1, therefore, the lamp 3 is completelyprotected Moreover, the

in Fig. 4 may be employed,-such a band rendering it absolutelyimpossible for the lamp 3 to move too close to theend of the jacket orwrapper 1 unless suficient force to burst the band is brought to bear.long and may have a diameter whenunex= Very positive protection for thetip of the lamp combined with inore'or less resilience can be obtainedby using a relatively thick but -freely expansible packing part such asis exemplified in Fig. 5. The sleeve paper known as chip is cheap andsatisfactory. As shown, the strip 4 is of the same width as the sleeveor band 4 of Fig. 2 (say 19; inches for a 25 watt lamp such as abovementioned) and of such a length that .when it is put in place in the endof the Wrapper or jacket part 2 its ends will not overlap. It isarranged with its plain faced side outward, so that its corrugationswill not fall in those of the sleeve 2, and thus it will always ofier avery considerable obstacle to movement of the tip end of the lamp towardthe corresponding end of the part 2. When this form of packing is used,the expansion of the part 4 which movement of the lamp toward the end ofthe jacket part 2 at which its tip lies would necessitate willbeyieldingly but effectually resisted by the resistance of this end ofthe jacket to expansion. This form of packing part and that shown inFig. 4 give rise to advantages that may make them in many respectspreferable to that shown in the other figures,especially for lampslarger than the 40 Watt tungsten lamp of the multiple type, for example.

What I claim as new and desire to-secure by Letters Patent of the UnitedStates, is,- A packing for incandescent lamp bulbs comprising acylindrical corrugated wrapper adapted to be expanded and distorted outof its cylindrical form by the bulging portion of the lamp'bulb uponinsertion thereof and a single reinforcing ring of expansible' materialadaptedvtobe inserted in one end of the wrapper to-reduce the areathereof and to be engaged by the tip end of the bulb and expandedthereby to conform to the shape of the interior of. the Wrapper and Inwitness whereof, I have hereunto set lampdbglb, whereby sgid ismaintained my hand this 3rd day of April, 1913.

in a e nite position y t e gri pingaction v between said ring andWrapper to support FRED MARCH and suspend the lamp bulb against acciden-Witnesses:

tal movement in the wrapper during han- CLARE SMALLSREED,

dling. p GEORGE LODWICK.

